All content on this site is available, via phone, Monday to Friday from 6:00 AM to 10:00 PM CST or Saturday and Sunday from 7:00 AM to 10:00 PM CST at
800-875-8480.
.
If you experience any accessibility issues, please contact us.

Product Details

Build your own medieval siege engines with the help of easy, step-by-step "blueprint" instructions. Then let the fun and experimentation begin! The catapult and trebuchet make fun contraptions for experimenting with force, distance, launch and weight; plus they make great hands-on projects for lessons on medieval machines.

This kit includes:The KEVA Catapult allows you to test launch distance by adjusting the arm recoil or the height of the flight deck. What travels farther, a marshmallow or a piece of macaroni? Everything you need is included: pre-drilled planks, wood glue, leather strap, ruler, rubber bands, cup, 2 balls, target mat, fasteners and easy, step-by-step instructions.The KEVA Trebuchet can vary its hurl by altering the counterweight; experiment to knock down a field of target planks using the two included balls. Build it yourself: all pieces are included! Pre-drilled planks, trigger cord, sling pouch with trigger ring, 2 KEVA balls, wood glue, rubber washers, 2 release pegs, 2 wooden dowels and easy, step-by-step instructions.

- Simple STEM builds that kids or classrooms can experiment with when complete!- Gives kids first-hand experience with balance, leverage, geometry and principles of engineering- All supplies included for building